Karen's Energy Expenditure

REE for a female (kcal/day) = 655 +  9.7(W) + 1.8(H)  - 4.7(A)

Karen = 655 + 9.7 (W) + 1.8 (H) - 4.7(A)
          = 655 + 9.7 (57.7) + 1.8 (171) - 4.7 (15)
          = 1408 kcal /day

Assume about 20% of REE for other activities:

1408 x 0.2 = 282 kcal

Dancing and Aerobics:

540 + 214 = 745 kcal

A conservative estimate of energy expenditure for Karen:

1408 + 282 + 745 = 2435 kcal/day